import axios from 'axios'
import API from './index'
import { Message } from 'element-ui'

const service = axios.create({
  baseURL: API.baseURL
})

// 添加请求拦截器
service.interceptors.request.use(config => {
  //在发送请求之前做些什么
  if(!config.headers.token){
    let token = localStorage.getItem('token')
    if(token) config.headers.token = token
  }
  return config
},error => {
  // 对请求错误做些什么
  return Promise.reject(error)
})

// 添加响应拦截器
service.interceptors.response.use(function (response) {
  // 对响应数据做点什么
  if(response.data.errorMsg){
    Message.error({
      message: response.data.errorMsg,
      type: 'error',
      duration: 1500
    })
  }
  return response.data
}, function (error) {
  let response = error.response
  switch(response.status){
    case 400:
      location.href = '#/login'
      break
    default:
      response = response.data
      Message.error({
        message: response.errorMsg || '未知错误',
        type: 'error',
        duration: 1500
      })
      break
  }
  // 对响应错误做点什么
  return Promise.reject(response)
})

export default service